Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 1,049	$ 1,554
Marketable debt securities, available for sale	4,685	6,687
Escrow receivable	4,828	4,830
Accounts receivable, net	738	2,968
Inventory, net	2,026	1,903
Prepaid expenses and other current assets	103	296
Total current assets	13,429	18,238
Property, plant and equipment, net of accumulated depreciation of $6,056 and $5,854, respectively	2,370	2,499
TOTAL ASSETS	15,799	20,737
Current liabilities
Accounts payable	442	437
Accrued advertising and other allowances	139	101
Dividend payable		2,929
Other current liabilities	375	766
Total current liabilities	956	4,233
Non-current liabilities:
Deferred revenue, net of current portion	191
Total non-current liabilities	191
Total liabilities	1,147	4,233
COMMITMENTS AND CONTINGENCIES
Stockholders' equity
Preferred stock authorized 1,000,000, $.0005 par value, no shares issued
Common stock authorized 50,000,000, $.0005 par value, issued 28,212,278 and 28,201,541 shares, respectively	14	14
Additional paid-in capital	59,847	59,471
Retained earnings	2,282	4,533
Treasury stock, at cost, 16,652,022 and 16,652,022 shares	(47,490)	(47,490)
Accumulated comprehensive loss	(1)	(24)
Total stockholders' equity	14,652	16,504
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 15,799	$ 20,737