CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 26,127	$ 31,190
Accounts receivable, less allowance for doubtful accounts of $156 and $174, respectively	12,778	12,795
Restricted cash, current	146	148
Prepaid and other	846	804
Total current assets	39,897	44,937
Property and equipment, net	164	186
Operating lease right-of-use assets	391	401
Deferred tax assets	626	793
Restricted cash	227	380
Other assets	7	7
Total assets	41,312	46,704
Current liabilities:
Accounts payable	697	1,064
Accrued expenses and other current liabilities	6,607	8,178
Operating lease obligations, current	267	246
Total current liabilities	7,571	9,488
Income tax payable	819	845
Operating lease obligations	129	160
Other liabilities	163	177
Total liabilities	8,682	10,670
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.001 par value, 10,000 shares authorized; none issued or outstanding	0	0
Common stock, $0.001 par value, 20,000 shares authorized; 3,669 and 3,663 shares issued; 2,682 and 2,936 shares outstanding, respectively	4	4
Additional paid-in capital	486,232	486,088
Accumulated deficit	(437,018)	(436,507)
Accumulated other comprehensive loss, net of applicable tax	(1,266)	(479)
Treasury stock, 987 and 726 shares, respectively, at cost	(15,322)	(13,072)
Total stockholders' equity	32,630	36,034
Total liabilities and stockholders' equity	$ 41,312	$ 46,704