Consolidated Statements of Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balances (in shares) at Dec. 31, 2016	3,220,000
Balances at Dec. 31, 2016	$ 3	$ 14,058	$ (18,779)	$ 76	$ (4,642)
Conversion of convertible notes payable and accrued interest into common stock (in shares)	385,000
Conversion of convertible notes payable and accrued interest into common stock	$ 1	5,840			5,841
Conversion of demand notes into common stock (in shares)	34,000
Conversion of demand notes into common stock		993			993
Charge for fair market value of beneficial conversion feature		2,954			$ 2,954
Exercise of common stock options (in shares)	22,000				22,000
Exercise of common stock options		28			$ 28
Exercise of stock purchase warrants (in shares)	181,000
Exercise of stock purchase warrants		19			19
Stock based compensation		1,733			1,733
Net loss			(10,374)		(10,374)
Foreign currency translation adjustment				(241)	(241)
Warrants issued with sale of convertible notes payable
Balances (in shares) at Dec. 31, 2017	3,842,000
Balances at Dec. 31, 2017	$ 4	25,625	(29,153)	(165)	(3,689)
Charge for fair market value of beneficial conversion feature		716			$ 716
Exercise of common stock options (in shares)					30,000
Stock based compensation		2,373			$ 2,373
Net loss			(5,905)		(5,905)
Foreign currency translation adjustment				448	448
Sale of common stock and warrants, net and exercise of stock options (in shares)	485,000
Sale of common stock and warrants, net and exercise of stock options		2,328			2,328
Warrants issued with sale of convertible notes payable		739			739
Conversion of convertible notes payable and accrued interest into common stock and warrants (in shares)	751,000
Conversion of convertible notes payable and accrued interest into common stock and warrants	$ 1	3,257			3,258
Balances (in shares) at Dec. 31, 2018	5,078,000
Balances at Dec. 31, 2018	$ 5	$ 35,038	$ (35,058)	$ 283	$ 268