Preferred Stock and Stockholders' Equity - Additional Information (Details)

v3.19.2

Preferred Stock and Stockholders' Equity - Additional Information (Details)				1 Months Ended						3 Months Ended			6 Months Ended		12 Months Ended
	Sep. 01, 2019 shares	Apr. 18, 2019 USD ($) $ / shares shares	Jan. 04, 2019 shares	May 31, 2019 USD ($) $ / shares shares	Apr. 30, 2019 USD ($) $ / shares shares	Jul. 25, 2018 shares	Apr. 30, 2018 $ / shares shares	Feb. 28, 2018 shares	Jan. 31, 2018 shares	Jun. 30, 2019 USD ($) $ / shares shares	Mar. 31, 2019 USD ($) shares	Jun. 30, 2018 USD ($) $ / shares shares	Jun. 30, 2019 USD ($) $ / shares shares	Jun. 30, 2018 USD ($) $ / shares shares	Dec. 31, 2018 $ / shares shares	Jul. 26, 2018 shares	Jun. 15, 2018 shares	Dec. 31, 2017 shares	Jan. 31, 2017 $ / shares	Jul. 23, 2010 shares
Class of Stock [Line Items]
Preferred Stock, Shares Issued																2,762,594		2,762,594		41,438,818
Temporary Equity, Shares Issued										250,000			250,000		0
Temporary Equity, Dividend Rate, Percentage													8.00%		8.00%
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		255,102															208,350
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares																			$ 5.40
Fair Value Adjustment of Warrants | $										$ (64,000)		$ 4,358,000	$ (175,000)	$ 4,249,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights															In the event an employee voluntarily resigns, the release dates of the shares will be extended such that only 16.5% of the shares are released every nine months, until 100% are released. In the event that a director voluntarily resigns, each of the release dates will be extended nine months
Debt Conversion, Converted Instrument, Shares Issued						99,594
Stock Issued During Period, Value, Restricted Stock Award, Gross | $											$ (65,000)
Payments Related to Tax Withholding for Share-based Compensation | $													$ 65,000	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant										492,808			492,808
Deferred Compensation Arrangement with Individual, Shares Issued			400,000
Share-based Compensation Award, Tranche One [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, Restricted Stock Award, Gross	464,632
Series C Convertible Note [Member]
Class of Stock [Line Items]
Debt Conversion, Converted Instrument, Shares Issued								327
Warrant [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares															$ 5.40
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options										8,731,915			8,731,915
Warrant [Member] | Series F Convertible Note [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights										25,000			25,000
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares												$ 5.40		$ 5.40
Warrant Term												5 years
Fair Value Adjustment of Warrants | $												$ 44,000
Warrant [Member] | Series F Convertible Note [Member] | Investment Bankers [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights												3,222		3,222
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares												$ 5.40		$ 5.40
Warrant Term												5 years
Fair Value Adjustment of Warrants | $												$ 5,700
Warrant [Member] | Series G Convertible Note [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights												208,350		208,350
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares												$ 5.40		$ 5.40
Warrant Term												5 years
Fair Value Adjustment of Warrants | $												$ 366,000
Warrant [Member] | Series G Convertible Note [Member] | Investment Bankers [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights												58,334		58,334
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares												$ 5.40		$ 5.40
Warrant Term												5 years
Fair Value Adjustment of Warrants | $												$ 102,000
Warrant [Member] | Measurement Input, Expected Dividend Rate [Member] | Series F Convertible Note [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input												0		0
Warrant [Member] | Measurement Input, Expected Dividend Rate [Member] | Series F Convertible Note [Member] | Investment Bankers [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input												0		0
Warrant [Member] | Measurement Input, Expected Dividend Rate [Member] | Series G Convertible Note [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input												0		0
Warrant [Member] | Measurement Input, Expected Dividend Rate [Member] | Series G Convertible Note [Member] | Investment Bankers [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input												0		0
Warrant [Member] | Measurement Input, Price Volatility [Member] | Series F Convertible Note [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input												57		57
Warrant [Member] | Measurement Input, Price Volatility [Member] | Series G Convertible Note [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input												57		57
Warrant [Member] | Measurement Input, Price Volatility [Member] | Series G Convertible Note [Member] | Investment Bankers [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input												57		57
Warrant [Member] | Measurement Input, Risk Free Interest Rate [Member] | Series F Convertible Note [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input												2.82		2.82
Warrant [Member] | Measurement Input, Risk Free Interest Rate [Member] | Series F Convertible Note [Member] | Investment Bankers [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input												2.82		2.82
Warrant [Member] | Measurement Input, Risk Free Interest Rate [Member] | Series G Convertible Note [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input												2.81		2.81
Warrant [Member] | Measurement Input, Risk Free Interest Rate [Member] | Series G Convertible Note [Member] | Investment Bankers [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input												2.82		2.82
Warrant [Member] | Measurement Input, Expected Term [Member] | Series G Convertible Note [Member]
Class of Stock [Line Items]
Warrant Term												5 years
Warrant [Member] | Measurement Input, Expected Term [Member] | Series G Convertible Note [Member] | Investment Bankers [Member]
Class of Stock [Line Items]
Warrant Term												5 years
Restricted Stock [Member]
Class of Stock [Line Items]
Allocated Share-based Compensation Expense | $														$ 2,156,000
Share-based Compensation Award, Tranche One [Member]
Class of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage														33.40%
Share-based Compensation Award, Tranche Two [Member]
Class of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage														33.30%
Stock Issued During Period, Shares, Restricted Stock Award, Gross	28,176
Share-based Compensation Award, Tranche Three [Member]
Class of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage														33.30%
Employees [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures									1,284,470
Director [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures									153,126
Mr Michael Howse [Member] | Warrant [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights							275,000
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares							$ 5.40
Fair Value Adjustment of Warrants | $										$ 0			$ 4,000
Share Price | $ / shares										$ 1.66			$ 1.66
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period							110,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number											110,000
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options										165,000			165,000
Mr Michael Howse [Member] | Warrant [Member] | Measurement Input, Expected Dividend Rate [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input										0			0
Mr Michael Howse [Member] | Warrant [Member] | Measurement Input, Price Volatility [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input										59			59
Mr Michael Howse [Member] | Warrant [Member] | Measurement Input, Risk Free Interest Rate [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input										1.74			1.74
Mr Michael Howse [Member] | Warrant [Member] | Measurement Input, Expected Term [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Term										3 years 9 months 7 days			3 years 9 months 7 days
Walsh [Member] | Warrant [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights					225,102
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares					$ 1.98
Fair Value Adjustment of Warrants | $					$ 216,000
Share Price | $ / shares					$ 2.08
Walsh [Member] | Warrant [Member] | Measurement Input, Expected Dividend Rate [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input					0
Walsh [Member] | Warrant [Member] | Measurement Input, Price Volatility [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input					59
Walsh [Member] | Warrant [Member] | Measurement Input, Risk Free Interest Rate [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input					2.38
Walsh [Member] | Warrant [Member] | Measurement Input, Expected Term [Member]
Class of Stock [Line Items]
Warrant Term					5 years
Alexander Capital [Member] | Warrant [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights				122,272	40,816
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares				$ 1.66	$ 2.18
Fair Value Adjustment of Warrants | $				$ 70,000	$ 43,000
Share Price | $ / shares				$ 1.36	$ 2.08
Alexander Capital [Member] | Warrant [Member] | Measurement Input, Expected Dividend Rate [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input				0	0
Alexander Capital [Member] | Warrant [Member] | Measurement Input, Price Volatility [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input				60	59
Alexander Capital [Member] | Warrant [Member] | Measurement Input, Risk Free Interest Rate [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input				2.18	2.38
Alexander Capital [Member] | Warrant [Member] | Measurement Input, Expected Term [Member]
Class of Stock [Line Items]
Warrant Term				4 years	5 years
LongTerm Stock Incentive Plan [Member]
Class of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award Maximum Percentage of Shares Authorized															15.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized															300,000
Stock Issued During Period, Shares, Restricted Stock Award, Gross													471,697
Stock Issued During Period, Value, Restricted Stock Award, Gross | $													$ 1,000,000
Stock Issued During Period, Value, Restricted Stock Award, Forfeitures | $													$ 323,162
Restricted Stock Shares Withheld													24,687
Payments Related to Tax Withholding for Share-based Compensation | $													$ 65,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant										2,304,909			2,304,909
Common Shares [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, Restricted Stock Award, Gross											123,848
Stock Issued During Period, Value, Restricted Stock Award, Gross | $											$ 0
Stock Issued During Period, Shares, Issued for Services										161,530
Common Shares [Member] | Warrant [Member] | Series F Convertible Note [Member]
Class of Stock [Line Items]
Share Price | $ / shares												$ 4.03		$ 4.03
Common Shares [Member] | Warrant [Member] | Series F Convertible Note [Member] | Investment Bankers [Member]
Class of Stock [Line Items]
Share Price | $ / shares												4.03		4.03
Common Shares [Member] | Warrant [Member] | Series G Convertible Note [Member]
Class of Stock [Line Items]
Share Price | $ / shares												4.03		4.03
Common Shares [Member] | Warrant [Member] | Series G Convertible Note [Member] | Investment Bankers [Member]
Class of Stock [Line Items]
Share Price | $ / shares												$ 4.03		$ 4.03
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Temporary Equity, Shares Issued		250,000
Temporary Equity, Par Value Per Share | $ / shares		$ 0.0001
Temporary Equity, Stated Value Per Share | $ / shares		$ 4.00
Temporary Equity, Dividend Rate, Percentage		8.00%
Convertible Preferred Stock Conversion Price | $ / shares		$ 4.00								$ 4.00			$ 4.00
Convertible Preferred Stock Floor Price Per Share | $ / shares		$ 1.50
Convertible Preferred Stock, Convertible, Issue of Shares, Threshold Percentage		19.99
Proceeds from Issuance of Convertible Preferred Stock | $		$ 1,000,000								$ 920,000
Embedded Derivative, Fair Value of Embedded Derivative Liability | $		$ 216,000
Preferred Stock, Convertible, Threshold Trading Days		5 days
Cumulative Dividends | $										16,000			$ 16,000
Preferred stock, Redemption Value Percentage		120.00%
Series A Preferred Stock [Member] | Warrant [Member]
Class of Stock [Line Items]
Fair value of warrant | $										$ 200,000			$ 200,000
Series A Preferred Stock [Member] | Minimum [Member]
Class of Stock [Line Items]
Convertible Preferred Stock Conversion Price | $ / shares		$ 1.50
Proceeds from Issuance of Convertible Preferred Stock | $		$ 500,000
Preferred stock, Redemption Basis, Amount Sought or Declared | $		100,000
Preferred stock, Redemption Basis, Gain or Loss on Property | $		100,000
Series A Preferred Stock [Member] | Maximum [Member]
Class of Stock [Line Items]
Proceeds from Issuance of Convertible Preferred Stock | $		$ 5,000,000