Consolidated Condensed Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Accounts receivable, allowance for doubtful accounts	$ 190	$ 170
Common shares, par value	$ 1.00	$ 1.00
Common shares, shares authorized	20,000,000	20,000,000
Common shares, shares issued	6,849,000	6,820,000
Common shares, shares outstanding	6,849,000	6,820,000
Assets	$ 45,959	$ 43,758
Liabilities	26,803	24,747
Hearing Help Express (HHE) [Member]
Assets	5,471	5,159
Liabilities	$ 5,023	$ 3,833