Accounts Receivable

12 Months Ended

Dec. 31, 2014

Receivables [Abstract]

Loans, Notes, Trade and Other Receivables Disclosure [Text Block]

3. Accounts Receivable

The Company maintains an allowance for uncollectible accounts receivable based on management’s assessment of the collectability of its customer accounts by reviewing customer payment patterns and other relevant factors. The Company reviews the adequacy of the allowance for uncollectible accounts on a quarterly basis and adjusts the balance as determined necessary. Write-offs are recorded at the time a customer account is deemed uncollectable. The following is a rollforward of the Company’s allowance for doubtful accounts:

	2014		2013
Balance, beginning of period	$	144,921	$	121,583
Provision for (recoveries of) doubtful accounts		44,178		82,332
Write-offs		(93,574)		(58,994)
Balance, end of period	$	95,525	$	144,921