CONSOLIDATED BALANCE SHEETS - (UNAUDITED) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 28,399	$ 27,999
Restricted cash	1,512	1,511
Accounts receivable, net of allowance of $215 and $213 in 2015 and 2014, respectively	378	504
Income tax receivable	10	4
Inventories, net	13,484	10,591
Prepaid expenses and other current assets	2,679	3,069
Deferred commissions	4,476	4,544
Deferred tax assets, net	926	1,141
Total current assets	51,864	49,363
Property and equipment, net	3,375	2,481
Construction in progress	1,299	1,622
Long-term restricted cash	6,984	7,045
Other assets	4,081	3,567
Long-term deferred tax assets, net	3,553	3,320
Total assets	71,156	67,398
LIABILITIES AND SHAREHOLDERS' EQUITY
Current portion of capital leases	1,257	901
Accounts payable	7,375	4,252
Accrued expenses	6,001	6,356
Commissions and incentives payable	6,540	7,908
Taxes payable	2,074	2,578
Current deferred tax liability	147	123
Deferred revenue	11,387	10,890
Total current liabilities	34,781	33,008
Capital leases, excluding current portion	1,343	852
Long-term deferred tax liabilities	1	26
Other long-term liabilities	2,137	2,136
Total liabilities	38,262	36,022
Commitments and contingencies
Shareholders' equity:
Preferred stock, $0.01 par value, 1,000,000 shares authorized, no shares issued or outstanding	0	0
Common stock, $0.0001 par value, 99,000,000 shares authorized, 2,773,972 shares issued and 2,679,411 shares outstanding as of March 31, 2015 and 2,773,972 shares issued and 2,676,077 shares outstanding as of December 31, 2014	0	0
Additional paid-in capital	40,442	40,672
Accumulated earnings	3,849	2,750
Accumulated other comprehensive income (loss)	133	(109)
Less treasury stock, at average cost, 94,561 and 97,895 shares in 2015 and 2014, respectively	(11,530)	(11,937)
Total shareholders' equity	32,894	31,376
Total liabilities and shareholders' equity	$ 71,156	$ 67,398