Consolidated Balance Sheets (Current Period Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 23,334	$ 14,550
Accounts receivable	168	134
Inventories, net	3,323	1,828
Other current assets	1,742	658
Total current assets	28,567	17,170
Property and equipment, net	294	265
Goodwill	1,764	1,764
Restricted cash	323	328
Other assets	296	300
Total assets	31,244	19,827
Current liabilities:
Accounts payable	4,438	3,058
Income taxes payable	53	25
Accrued distributor commissions	3,957	3,962
Other accrued expenses	4,321	3,146
Deferred revenue	7,881	2,569
Deferred tax liability	108	108
Other current liabilities	923	882
Total current liabilities	21,681	13,750
Commitments and contingencies	0	0
Stockholders’ equity:
Preferred stock, $0.001 par value; 5,000,000 shares authorized; 1,761,900 shares designated Series A convertible preferred stock, 123,693 and 103,693 shares issued and outstanding at December 31, 2013 and March 31, 2014, respectively; aggregate liquidation value of $262 at March 31, 2014	93	111
Common stock, $0.001 par value; 50,000,000 shares authorized; 11,332,771 and 11,523,140 shares issued and outstanding at December 31, 2013 and March 31, 2014, respectively	12	11
Additional paid-in capital	81,272	80,655
Accumulated deficit	(71,706)	(74,619)
Accumulated other comprehensive loss:
Foreign currency translation adjustments	(108)	(81)
Total stockholders’ equity	9,563	6,077
Total liabilities and stockholders’ equity	$ 31,244	$ 19,827