Segment Information (Details 1) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting Information [Line Items]
Revenues	$ 1,277	$ 2,816	$ 3,168	$ 4,947
Net loss	(1,625)	(202)	(2,580)	(824)
Histology Equip [Member]
Segment Reporting Information [Line Items]
Revenues	263	1,683	1,177	2,787
Histology Consumables [Member]
Segment Reporting Information [Line Items]
Revenues	803	671	1,480	1,234
Cytology Consumables [Member]
Segment Reporting Information [Line Items]
Revenues	211	462	511	926
UNITED STATES
Segment Reporting Information [Line Items]
Revenues	174	279	424	553
Net loss	(667)	(487)	(1,237)	(977)
UNITED STATES | Histology Equip [Member]
Segment Reporting Information [Line Items]
Revenues	38	119	184	215
UNITED STATES | Histology Consumables [Member]
Segment Reporting Information [Line Items]
Revenues	136	24	240	70
UNITED STATES | Cytology Consumables [Member]
Segment Reporting Information [Line Items]
Revenues	0	136	0	268
GERMANY
Segment Reporting Information [Line Items]
Revenues	1,098	2,534	2,731	4,376
Net loss	(921)	333	(1,137)	244
GERMANY | Histology Equip [Member]
Segment Reporting Information [Line Items]
Revenues	220	1,564	980	2,564
GERMANY | Histology Consumables [Member]
Segment Reporting Information [Line Items]
Revenues	667	644	1,240	1,157
GERMANY | Cytology Consumables [Member]
Segment Reporting Information [Line Items]
Revenues	211	326	511	655
POLAND
Segment Reporting Information [Line Items]
Revenues	5	3	13	18
Net loss	(37)	(48)	(206)	(91)
POLAND | Histology Equip [Member]
Segment Reporting Information [Line Items]
Revenues	5	0	13	8
POLAND | Histology Consumables [Member]
Segment Reporting Information [Line Items]
Revenues	0	3	0	7
POLAND | Cytology Consumables [Member]
Segment Reporting Information [Line Items]
Revenues	$ 0	$ 0	$ 0	$ 3