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Condensed Consolidated Balance Sheets - USD ($)
Mar. 31, 2020
Dec. 31, 2019
Current assets:    
Cash $ 3,802,000 $ 1,096,000
Accounts receivable, net of $2,000 and $41,000 respectively allowance for doubtful accounts 3,582,000 4,212,000
Inventory 1,743,000 1,708,000
Prepaid expenses and other current assets 514,000 460,000
Total current assets 9,641,000 7,476,000
Property, plant and equipment, net 4,925,000 5,061,000
Investment 2,154,000 2,154,000
Marketable securities 570,000
Notes receivable 1,255,000 793,000
Other assets 54,000 50,000
Right-of-use assets 1,119,000 1,223,000
Goodwill 1,769,000 2,454,000
Other intangible assets, net 816,000 935,000
Total assets 22,303,000 20,146,000
Current liabilities:    
Accounts payable 1,489,000 1,492,000
Accrued expenses and deferred revenue 706,000 936,000
Other current liabilities 390,000 390,000
Revolving line of credit 800,000 500,000
Current portion of lease liability 369,000 397,000
Current portion of long-term debt, net 403,000 441,000
Total current liabilities 4,157,000 4,156,000
Long-term debt, net 2,427,000 2,310,000
Long term lease liability 750,000 826,000
Other long-term liabilities 507,000 507,000
Deferred tax liability, net 44,000 44,000
Commitments and contingencies (Note 8)
Stockholders' equity    
Common stock, $.02 par value; 200,000,000 shares authorized, 2,069,000 shares issued and outstanding (1,206,000 on December 31, 2019) 42,000 24,000
Additional paid-in capital 119,624,000 115,560,000
Non-controlling interest in subsidiary (67,000)
Accumulated deficit (105,181,000) (103,281,000)
Total stockholders' equity 14,418,000 12,303,000
Total liabilities and stockholders' equity $ 22,303,000 $ 20,146,000